JP2009241746A - Trolley system using non-contact type power supply system - Google Patents

Abstract

An object of the present invention is to provide a trolley system using a non-contact power supply system that can improve the simplification and assembly of the trolley system when a non-contact power supply system is used.
This is realized by having a power supply hanger 9 that supports the power supply line 6 on the rail 2, and making the power supply hanger 9 detachable by an attachment / detachment mechanism provided on the rail 2 and the power supply line hanger 9. .
[Selection] Figure 2

Description

  The present invention relates to a trolley system that travels a moving body using a current passed by a non-contact power supply system as a drive source.

  Conventionally, in a trolley system such as an overhead crane or a monorail, a power feeding system is used to supply electricity as a driving source to a moving body such as a self-propelled hoist or a carriage. The power supply system is designed to pass current between a power supply duct (power supply line) wired along the rail that runs the hoist and a current collector (brush) provided on the hoist side. To drive the moving body. At this time, in general, a contact-type power supply system in which a brush always contacts a power supply line is used as the power supply system (see, for example, Patent Document 1).

  However, in the contact-type power supply system, the brush moves while always in contact with the power supply line, so that the brush and the power supply line are worn and need to be replaced regularly, resulting in high running costs.

For this reason, in recent years, a high-frequency current is caused to flow through a power supply line, and an induced current is generated in an electron receiving device that is brought close to the power supply line in a non-contact state by electromagnetic induction caused by a magnetic field generated around the power supply line. A contactless power supply system has been proposed (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 9-255279 Japanese Patent Laid-Open No. 11-4502

  However, in a trolley system using a conventional non-contact power supply system, the power supply line and the received electron are non-contact, and it is necessary to efficiently use the electromagnetic induction phenomenon. For this reason, a trolley system using a contactless power supply system is naturally different in configuration from a trolley system using a contact type power supply system, and follows the configuration of the trolley system using the contact type power supply system. I can't do it.

  Therefore, the present invention provides a trolley system using a non-contact power supply system that can improve the simplification and assembly of the trolley system when a non-contact power supply system is used.

  The invention according to claim 1 is a rail fixedly installed on the housing side, a moving body that is guided and supported so as to be able to travel on the rail, a power supply line that is wired along the rail and through which a high-frequency current flows, A power receiving block that moves with the moving body and drives the moving body with a current delivered from the power supply line, and the power receiving block includes electrons received in a non-contact state with the power supply line, The current passing between the power supply line and the power receiving block is a trolley system using a non-contact power supply system that generates an induced current in the received electrons by electromagnetic induction caused by a magnetic field generated in the power supply line. A feeder hanger for supporting the feeder on the rail, and the feeder hanger is detachable by an attachment / detachment mechanism provided on the rail and the feeder hanger. To.

  According to a second aspect of the present invention, in the trolley system using the non-contact power supply system according to the first aspect, the power supply line hanger has a plurality of holding portions that hold a plurality of power supply lines at a predetermined interval. To do.

  According to the present invention, since the power supply hanger that supports the power supply line on the rail is detachable from the rail, the layout of the power supply line can be freely adjusted, so that easy construction can be realized. For example, since it is possible to arbitrarily adjust the wiring interval when parallelly connecting a plurality of power supply lines, it is possible to easily realize a construction form desired by the user even in a space where the installation environment is limited.

  In addition, according to the present invention, since a plurality of power supply lines can be held by one power supply line hanger, a significant cost reduction is realized by reducing the number of parts, and a limited installation space is effectively used. be able to.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 6 show an embodiment of a trolley system using a non-contact power feeding system according to the present invention, FIG. 1 is a schematic configuration diagram showing the whole of the trolley system, and FIG. 2 is II-II in FIG. 3 is an enlarged cross-sectional view taken along a line, FIG. 3 is an enlarged perspective view showing a connecting end portion of the power supply line, FIG. 4 is an enlarged perspective view of a connector for connecting the power supply line, and FIG. It is the figure which showed an example of the attachment / detachment mechanism provided in the electric wire hanger, and FIG. 6 is the figure which showed an example of the attachment / detachment mechanism provided in the rail.

  As shown in FIG. 1, the trolley system 1 of the present embodiment includes a movable body 3 that can move along a movable body rail (not shown), and a non-contact power feeding system 4 that supplies electric power to the movable body 3. It has.

  The moving body rail for guiding the moving body 3 is fixedly installed on a housing such as a factory or a warehouse not shown. The moving body 3 drives the motor 31 with electricity supplied from the non-contact power supply system 4 to drive a predetermined work, for example, travel along the rail for the moving body, operation of a chain block (not shown), Drive.

  The non-contact power supply system 4 includes a rail 2, a plurality of power supply lines 6 that are wired along the rail 2, and a high-frequency current flows from the high-frequency power source 5, and is moved from the power supply line 6 following the moving body 3. And a power receiving block 7 for supplying current to the moving body 3. The non-contact power supply system 4 can receive electricity from the power supply line 6 without contacting the power supply line 6 by electromagnetic induction.

  The power reception block 7 is fixed to the moving body 3 and pulled by the moving body 3, and moves along the rail 2 by being pulled by the moving body 3.

  The power reception block 7 has a core 71 as an electron receiver that is arranged in a non-contact state on the power supply line 6. As shown in FIG. 2, the core 71 has an outer 71 s having a substantially U-shaped cross-section so as to straddle the feeder 6 from the side, and the outer 71 s is located on both sides of the feeder 6. A pair of coils 71p and 71m are arranged opposite to each other to constitute an electromagnetic pickup. At this time, it is preferable that the coils 71p and 71m be as close as possible to the feeder line 6. Then, when a high frequency current is supplied from the high frequency power source 5 to the power supply line 6, the magnetic field MF is generated and attenuated according to the frequency of the supplied high frequency current around the power supply line 6. An induced current is generated in the coils 71p and 71m due to a change in density.

  Then, as shown in FIG. 1, the current generated in the coils 71p and 71m is stabilized by the resonance circuit 72 built in the power receiving block 7, and then sent from the constant voltage circuit 73 to the inverter 32 provided in the moving body 3. A current converted into a direct current is supplied to the motor 31.

  As shown in FIG. 3, the feeder 6 is formed as a long body having a predetermined length by a conductor portion 61 and an insulating portion 62 in which the conductor portion 61 is embedded in the center. A plurality of feeder lines 6 are used in accordance with the length of wiring.

  The conductor portion 61 has a double tube structure in which a channel-shaped small-diameter tube 61a and a large-diameter tube 61b are arranged substantially concentrically, and includes an open portion 61c of the small-diameter tube 61a and an open portion 61d of the large-diameter tube 61b. Are arranged in the same direction. And the small diameter pipe | tube 61a and the large diameter pipe | tube 61b are mutually connected through the connection rib 61e on the opposite side to the open parts 61c and 61d. A flat portion 61f is formed on the side of the large-diameter pipe 61b where the connecting rib 61e is disposed over a predetermined width W0 with the connecting rib 61e as the center.

  The insulating part 62 is made of a flexible synthetic resin or the like. By inserting the conductor portion 61 into the insulating portion 62 and extruding it, the feeder 6 having a predetermined length can be continuously formed.

  The insulating portion 62 is generally formed in a substantially rectangular section, and the side (upper side in the drawing) on which the open portions 61c and 61d of the conductor portion 61 are arranged becomes a narrow portion 62a having a small width W1, The opposite side (downward in the figure) is a wide portion 62b having a large width W2, and a stepped portion 62c is formed between them. At this time, the outer (upper in the figure) corner of the narrow part 62a is chamfered, and the outer (lower in the figure) corner of the wide part 62b is slightly protruded in the surface direction of the wide part 62b. A pair of portions 62d are provided in the width direction.

  As shown in FIG. 1, when the power supply lines 6 are wired along the rails 2, the power supply lines 6 are connected to each other via connecting tools such as a joiner 8, an L-type joiner 8 </ b> A, and an end joiner 8 </ b> B.

  Here, a straight portion, a bent portion, a curved portion, and the like are formed on the rail 2 along a preset traveling route of the moving body 3, and accordingly, the feeding wire 6 and the straight portion of the rail 2 are linear. It becomes the wiring portion 6A, the bent portion becomes the bent wiring portion 6B, and the curved portion becomes the curved wiring portion 6C. Therefore, the straight wiring part 6A of the feeder 6 is connected by the joiner 8, and the bent wiring part 6B is connected by the L-type joiner 8A. In addition, although the feed line 6m and the return path line 6n are wired substantially in parallel, the terminal portions of both the lines 6m and 6n are connected by an end joiner 8B.

  As shown in FIG. 4, the joiner 8 that connects the power supply lines 6 to each other in a straight line is formed in a rectangular parallelepiped shape having a width W3 larger than that of the power supply line 6 by an insulating member such as a synthetic resin. At one end of the joiner 8 in the height h direction (vertical direction in the figure), a connection recess 81 into which the feeder 6 is inserted is formed penetrating in the length L direction (horizontal direction in the figure), and a pair to be connected. The connecting end 6E of the feeder 6 is inserted so as to be opposed to both ends of the connecting recess 81 in the length L direction. At this time, the connecting end portion 6E of the feeder 6 has the conductor portion 61 exposed by cutting away the insulating portion 62 over a predetermined length L1.

  The connection recess 81 is a cross-sectional shape substantially along the outer shape of the insulating portion 62 of the feeder 6 shown in FIG. 3, that is, the shape of the narrow portion 62a, wide portion 62b, stepped portion 62c, convex portion 62d, and bottom surface 62e. In the state where the power supply line 6 is inserted into the connection recess 81, the power supply line 6 is held by the joiner 8 without play and is not easily detached.

  A conductive plate 82 that is in contact with the flat portion 61f of the conductor portion 61 exposed from the connection end 6E of the feeder 6 is attached to the central portion in the length L direction of the bottom surface 81a of the connection concave portion 81. The conductor portions 61 of the feeder 6 to be connected are electrically connected to each other. Further, the width W3 of the joiner 8 is a dimension through which the core 71 can pass.

  An appropriate portion of the feeder 6 is fixed to the rail 2 by a feeder hanger 9. The feeder hanger 9 prevents the feeder line 6 from drooping while the feeder line 6 is wired along the rail 2.

  As shown in FIG. 2, the feeder hanger 9 includes a holding arm 91 that holds the feeder 6, and a fitting end 92 for fitting the holding arm 91 to the mounting base 11 provided on the rail 2. Become. As shown in FIG. 2, the fitting end 92 is formed larger than the holding arm 91.

  The mounting base 11 is formed with a groove 11a for fitting with the fitting end 92 of the feeder hanger 9, and the fitting end 92 of the feeder hanger 9 is inserted from the end of the groove 11a. Thus, the feeder hanger 9 can be attached to the rail 2. At this time, the engaging end portion 92 formed larger than the holding arm of the feeder hanger 9 is locked by the locking portion 11b formed so as to protrude in the vertical direction toward the paper surface of FIG. 2 of the groove 11a. Therefore, the feeder hanger 9 is attached to the mounting base 11 satisfactorily.

  An attachment / detachment mechanism for the feeder hanger 9 is formed by the fitting end portion 92 of the feeder hanger 9 and the groove 11a formed in the mounting base 11.

  In addition, as shown in FIG. 2, the vertical direction toward the paper surface of the opening 11c of the groove 11a of the mounting base 11 is 11x, the vertical direction toward the paper surface inside the groove 11a is 11y, and the inside of the groove 11a. The left-right direction toward the paper surface is 11z, and a magnitude relationship of 11y> 11x is given. In this case, as shown in FIG. 5A, when the shape of the fitting end portion 92 of the feeder hanger 9 is represented by a, b, c (a <11z, b <11x, c <11y), After inserting the fitting end portion 92 in the direction of arrow A shown in FIG. 5A with respect to the opening portion 11c of the mounting base 11 shown in FIG. 2, it is rotated 90 degrees as shown in FIG. 5B. Thus, the fitting end 92 of the feeder hanger 9 can be fitted into the groove 11a of the mounting base 11.

  As shown in FIG. 6, a plurality of feed wire hangers 9 can be installed by forming one or more, for example, 1 to 3 grooves 11 a on the mounting base. can do. Further, by forming a plurality of mounting groove 11a, the feeder hanger 9 can be freely attached to the groove 11a, so that the number of feeders 6 and the pitch between the feeders 6 can be freely adjusted. Therefore, the degree of freedom of wiring of the feeder line can be greatly improved.

  Thus, since the feed wire hanger 9 is detachable with respect to the rail 2, the layout of the feed wire 6 can be freely adjusted, so that easy construction can be realized. For example, since it is possible to arbitrarily adjust the wiring interval when the plurality of feeders 6 as described above are wired in parallel, it is possible to easily realize a construction form desired by the user even in a space where the installation environment is limited Can do.

  In FIG. 2, one power supply line 6 can be attached to one power supply hanger 9, but the shape of the distal end portion 93 of the holding arm 91 shown in the region A of FIG. 7 and FIG. 8, a plurality of feed lines 6 can be attached to one feed line hanger 9.

  In FIG. 7, three grooves 93 a for attaching the power supply line 6 are formed in the distal end portion 93 of the holding arm 91. In this case, the feeding wire 6 can be easily attached and detached by forming the distal end portion 93 of the holding arm with an elastic member.

  In FIG. 8, three grooves 93a for attaching the feeder 6 are formed in the distal end portion 93 of the holding arm 91 as in the example shown in FIG. 7, but the distal end portion 93 is the distal end part 93A and the wiring is the hinge 93C. The power supply line 6 can be easily attached and detached by making the tip part 93B freely openable and closable.

  As described above, since a plurality of power supply lines 6 can be held by one power supply hanger 9, it is possible to realize a significant cost reduction by reducing the number of parts and to effectively use a limited installation space. it can.

  Further, a power supply hanger 9A as shown in FIG. 9 can be used instead of the power supply hanger 9 described above. As shown in FIG. 9A, the feeder hanger 9 includes an attachment portion 94a for attaching to the groove 11a of the attachment base 11 as shown in FIG. 6, and a holding arm 94b. A holding groove 94d for holding the feeder 6 is formed at the distal end portion 94c of the holding arm 94b.

  FIGS. 9B and 9C are views showing the states viewed from the directions of arrows A and B shown in FIG. 9A, respectively. 9B, when viewed from the direction of the attachment portion 94a, the feeder hanger 9A has a point-symmetric shape (for example, a cylindrical shape) with the center point c of the attachment portion 94a and the holding arm 94b as the center of symmetry. It has become. Thereby, when the feeder hanger 9A is attached to the groove 11a of the mounting base 11, the feeder hanger 9A can freely rotate, and the direction of the feeder 6 held in the holding groove 94d of the tip 94c. Can be directed in any direction. Thereby, the wiring freedom degree of the feeder 6 can be improved.

  Further, instead of the above-described feed wire hanger 9, feed wire hangers 9B and 9C having a double-pipe structure such as a C channel and a circular tube as shown in FIGS. 10A and 10B are used. By making the pitch 91 adjustable, it is possible to freely adjust the pitch between the feed lines 6 to be parallel-wired. Thereby, the wiring freedom degree of the feeder 6 can be improved.

  In addition, when using the feeder hangers 9B and 9C as shown in FIGS. 10 (a) and 10 (b), instead of the mounting base 11 shown in FIG. The members that hold the power supply hangers 9B and 9C by force may be installed on the rail 2 by the number corresponding to the size and shape of the power supply hangers 9B and 9C.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a schematic structure figure showing the whole trolley system shown as an embodiment of the invention. It is an expanded sectional view along the II-II line in FIG. It is an expansion perspective view which shows the connection end part of a feeder. It is an expansion perspective view of the connection tool which connects a feeder. It is the figure which showed an example of the attachment / detachment mechanism provided in the rail and the feeder hanger. It is the figure which showed an example of the attachment / detachment mechanism provided in the rail. It is the figure which showed an example of the front-end | tip shape of a feeder hanger. It is the figure which showed another example of the front-end | tip shape of a feeder hanger. It is the figure which showed an example of the feed wire hanger which can rotate freely. It is the figure which showed an example of the feeder hanger which can adjust between pitches.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Trolley system 2 Rail 3 Mobile body 4 Non-contact-type electric power feeding system 6 Feeding line 8 Joiner 9 Feeding line hanger 9A Feeding line hanger 9B Feeding line hanger 11 Mounting base 11a Groove 11b Locking part 11c Opening part 91 Holding arm 92 Fitting end Part 93 Tip part 93A, 93B Tip part 93C Hinge 93a Groove 94a Mounting part 94b Holding arm 94c Tip part 94d Holding groove

Claims (2)

A rail fixedly installed on the housing side,
A movable body guided and supported by the rail so as to be able to travel;
A feeder line that is routed along the rail and through which a high-frequency current flows;
A power receiving block that moves with the moving body and drives the moving body with a current delivered from the power supply line;
The power receiving block has electrons received in a non-contact state with the power supply line, and current transfer between the power supply line and the power receiving block is performed by electromagnetic induction by a magnetic field generated in the power supply line. A trolley system using a non-contact power supply system that generates an induced current in
A non-contact power supply system comprising a power supply hanger for supporting the power supply line on the rail, wherein the power supply hanger is detachable by an attaching / detaching mechanism provided on the rail and the power supply line hanger. Trolley system using The trolley system using the non-contact type power feeding system according to claim 1, wherein the feeder hanger has a plurality of holding portions that hold a plurality of feeder lines at a predetermined interval.

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